Index: llvm/lib/Target/PowerPC/CMakeLists.txt
--- llvm/lib/Target/PowerPC/CMakeLists.txt.orig
+++ llvm/lib/Target/PowerPC/CMakeLists.txt
@@ -43,6 +43,7 @@ add_llvm_target(PowerPCCodeGen
   PPCMacroFusion.cpp
   PPCMIPeephole.cpp
   PPCRegisterInfo.cpp
+  PPCReturnProtectorLowering.cpp
   PPCSubtarget.cpp
   PPCTargetMachine.cpp
   PPCTargetObjectFile.cpp
